Non-unitarity of the leptonic mixing matrix in the TeV-scale type-I seesaw model
2010 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 692, no 4, 257-260 p.Article in journal (Refereed) Published
The non-unitarity effects in leptonic flavor mixing are regarded as one of the generic features of the type-1 seesaw model. Therefore, we explore these effects in the TeV-scale type-1 seesaw model, and show that there exist non-trivial correlations among the non-unitarity parameters, stemming from the typical flavor structure of the low-scale seesaw model. In general, it follows from analytical discussions and numerical results that all the six non-unitarity parameters are related to three model parameters, while the widely studied parameters eta(e tau) and eta(mu tau) cannot be phenomenologically significant simultaneously.
Place, publisher, year, edition, pages
Elsevier B.V. , 2010. Vol. 692, no 4, 257-260 p.
Leptonic flavor mixing, Seesaw mechanism, Non-unitarity effects
IdentifiersURN: urn:nbn:se:kth:diva-26653DOI: 10.1016/j.physletb.2010.07.053ISI: 000282249400007ScopusID: 2-s2.0-77956062289OAI: oai:DiVA.org:kth-26653DiVA: diva2:374239
FunderSwedish Research Council, 621-2008-4210
QC 201012032011-06-212010-11-262011-06-21Bibliographically approved